Tech

History detective: Using physics to track currency fraud, forgery through history

Enlarge / Nuclear physicists used micro-XRF scanning to produce elemental maps for Roman denarii coins and their color overlays. (credit: K.V. Manukyan et al., 2019) Most people associate nuclear physics with the atomic bomb or nuclear power plants, and those associations are often negative. Michael Wiescher, a nuclear physicist at the University of Notre Dame, […]